Abstract: A spinning device, for a ring spinning or ring twisting machine, having a spinning spindle for holding a yarn tube such that the yarn tube is oriented coaxial with a spindle axis, a spinning ring for guiding, on the outside thereof, a yarn to be wound on the yarn tube, the spinning ring being arranged coaxial with the spindle axis, and a spinning-ring guiding unit arranged coaxial with the spindle axis, wherein the spinning ring is floatingly fixed at the spinning-ring guiding unit in the spindle-axis direction. In order to provide a spinning device and a spinning machine having a spinning device which allow a spinning process to be reliably performed without limitation of the spindle speed and without use of a ring traveller, a balloon limiter tube is arranged coaxial with the spindle axis such that the yarn is guided on an inner face of the balloon limiter tube.

Abstract: A waveguide arrangement for guiding electromagnetic waves in a cavity surrounded by conductive material is proposed, wherein the waveguide arrangement comprises a printed circuit board material having an electrically conductive, plate-shaped back, a substrate and a conductive layer arranged on a side of the substrate facing away from the back. According to the invention, it is provided that the back has a surface structure, preferably formed by at least one recess, by which the waveguiding cavity is at least partially directly bounded; and/or that the cavity is formed in split-block technology by joining the printed circuit board material as split-block bottom part with a corresponding cover as split-block top part.

Abstract: The present invention relates to a frequency generator arrangement having an oscillator for generating an oscillator signal having an oscillator frequency and an oscillator output for outputting the oscillator signal, the frequency generator arrangement further comprising a frequency multiplier coupled and/or connected to an oscillator output for generating an output signal of the frequency generator arrangement having a multiplier frequency corresponding to a multiple of the oscillator frequency, wherein the frequency multiplier comprises a frequency multiplier core directly causative of the frequency multiplication, the frequency multiplier core having a power supply, and the frequency generator arrangement having a control input for controlling the power supply to the frequency multiplier core, whereby an output power of the output signal is adjustable by controlling the power supply to the frequency multiplier core.

Abstract: The present invention relates to a reference oscillator arrangement comprising a first reference oscillator for generating a first output signal and a second reference oscillator for generating a second output signal, wherein the reference oscillator arrangement comprises a phase locked loop for controlling the frequency and/or phase of the second reference oscillator to the frequency and/or phase of the first reference oscillator.

Abstract: A spinning device, for a ring spinning or ring twisting machine, having a spinning spindle for holding a yarn tube such that the yarn tube is oriented coaxial with a spindle axis, a spinning ring for guiding, on the outside thereof, a yarn to be wound on the yarn tube, the spinning ring being arranged coaxial with the spindle axis, and a spinning-ring guiding unit arranged coaxial with the spindle axis, wherein the spinning ring is floatingly fixed at the spinning-ring guiding unit in the spindle-axis direction. In order to provide a spinning device and a spinning machine having a spinning device which allow a spinning process to be reliably performed without limitation of the spindle speed and without use of a ring traveller, a balloon limiter tube is arranged coaxial with the spindle axis such that the yarn is guided on an inner face of the balloon limiter tube.

Abstract: A spinning nozzle for an air-jet spinning machine has a base body with an internal turbulence chamber, an inlet opening for the fiber sliver which enters the turbulence chamber and a fiber guide channel for guiding the fiber sliver entering the inlet opening. A thread-forming element extends at least partially into the turbulence chamber and has an inlet mouth as well as an adjoining take-off channel for the thread in the transport direction. Air nozzles are directed into the turbulence chamber. The spinning nozzle has an extension piece that is releasably fixed to the base body in the region of the inlet opening, wherein the fiber guide channel adjoining the inlet opening is formed at least partially by a channel section of the extension piece.

Abstract: A roving machine for producing a roving from a sliver has at least one spinning station that has a vortex chamber with an infeed opening for the sliver and a roving forming element in the form of a spindle extending at least partially into the vortex chamber. The vortex chamber is associated with at least one air nozzle via which air is guided into the vortex chamber, and wherein the spindle has a draw-off channel via which the roving is drawn out of the vortex chamber. In the region of the vortex chamber, the draw-off channel has an inlet port for the roving to be drawn out of the vortex chamber, wherein the inlet port has an inner diameter that lies between 4 mm and 12 mm, preferably between 6 mm and 8 mm.

Abstract: A roving machine for producing a roving (1) from a sliver (2), has at least one spinning station (3) with a vortex chamber (4) having an infeed opening (5) for the sliver (2) and a roving forming spindle (6) extending at least partially into the vortex chamber (4). The vortex chamber (4) is associated with at least one air nozzle (8). The spindle (6) has a draw-off channel (9) via which the roving (1) can be drawn out of the vortex chamber (4). In the region of the vortex chamber (4), the draw-off channel (9) has an inlet port (10) for the roving (1) to be drawn out of the vortex chamber (4), wherein the inlet port has an inner diameter (F), the value of which lies between 4 mm and 12 mm.